I'm looking to upgrade my wife from the 3GS -> 4 and I see a lot of phones selling for $350-$400 and personally thought it was outrageous (these were also only 16GB models). Correct me if I am wrong, but these are used phones, that are now a generation old and only cost ~$600 retail when launched...over a year ago.... To me, it would be the equivalent of taking a PS3 and looking up the retail price of one at launch(~$500) and trying to sell it for $300 used when they are $199 now...Am I waaayy off base on this? Or is it price gouging so that people can buy out their ETF's? I was expecting to see $150 prices...But I see 3GS iPhone ad's for that price...